4100969 ÷ 663 
The aim is to understand the frequency of 663 in 4100969.

On to step 1:
If we divide 4 by 663, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 663

Step 2:
663 can be fit into 41 0 times, resulting in a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 41 leaves us with 41.
Grab the next digit (0) from the dividend, add it to 41, then carry on: 410 / 663

On to step 3:
663 goes into 410 0 times with a remainder of 410.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 410 after subtracting 0 from 410.
Append the next digit (0) from the dividend to 410 and continue with: 4100 / 663

Going ahead to step 4:
663 can be fit into 4100 6 times, resulting in a remainder of 122.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 3978 from 4100 leaves us with 122.
Grab the next digit (9) from the dividend, add it to 122, then carry on: 1229 / 663

Going ahead to step 5:
1229 divided by 663 is 1 with a remainder of 566.
Use 1 as the next digit of our solution. 
Result so far: 61.0
The remainder is 566 after subtracting 663 from 1229.
Fetch the next digit (6) from the dividend, attach it to 566 and continue: 5666 / 663

Let's proceed to step 6:
The number 663 fits into 5666 8 times, leaving a remainder of 362.
The number 8 becomes the next digit in our result. 
Result so far: 618.0
Subtract 5304 from 5666 to get 362.
Append the next digit (9) from the dividend to 362 and continue with: 3629 / 663

Let's proceed to step 7:
663 can be fit into 3629 5 times, resulting in a remainder of 314.
Write down 5 as next digit of the result. 
Result so far: 6185.0
If we take 3315 away from 3629, we end up with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Moving on to step 8:
663 goes into 3140 4 times with a remainder of 488.
Use 4 as the next digit of our solution. 
Result so far: 6185.4
If we subtract 2652 from 3140, we get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Let's proceed to step 9:
663 goes into 4880 7 times with a remainder of 239.
The number 7 becomes the next digit in our result. 
Result so far: 6185.47
The remainder is 239 after subtracting 4641 from 4880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Going ahead to step 10:
663 goes into 2390 3 times with a remainder of 401.
Write down 3 as next digit of the result. 
Result so far: 6185.473
Subtract 1989 from 2390 to get 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Let's proceed to step 11:
When dividing 4010 by 663, we get 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 6185.4736
Deduct 3978 from 4010 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
The number 663 fits into 320 0 times, leaving a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 6185.4736
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 13:
When dividing 3200 by 663, we get 4 with a remainder of 548.
The next digit of our result is 4. 
Result so far: 6185.473604
Subtracting 2652 from 3200 leaves us with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

On to step 14:
The number 663 fits into 5480 8 times, leaving a remainder of 176.
Record the quotient 8 as the next digit in the result. 
Result so far: 6185.4736048
Subtract 5304 from 5480 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Going ahead to step 15:
663 can be fit into 1760 2 times, resulting in a remainder of 434.
Put 2 as the next digit of the answer. 
Result so far: 6185.47360482
Subtract 1326 from 1760 to get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

The final outcome is 6185.47360482, with a leftover of 4.34e-07.